java - Spring transaction manager and multithreading

Question

I am writing multithreading program in serviceImpl using Callable interface.I am using spring transaction manager.When update operation is executed in DB ,it is executed successfully .But the updated data is not reflected in DB.But When i run program without multithreading it is updated in DB.

This is my configuration

<tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="*" />
            <tx:method name="find*" propagation="NOT_SUPPORTED" />
            <tx:method name="get*" propagation="NOT_SUPPORTED" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="serviceOperation" expression="execution(* *..*ServiceImpl.*(..))" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" />
    </aop:config>
    <bean id="txManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

I can shift to another approach for transaction manager.Just i want to get confirm if this approach supports or not for multithreading. So my question is Do spring transaction manager supports multithreading(I mean just by declaring annotation Or XML ) Why updated data is not reflected in DB in my case? What can be the best alternative approach ?

Answer 1

The transactional context used by Spring is stored in a thread-local variable. So if you start a new thread, or execute code in another thread using a callable, this code won't be part of the transaction started by the Spring transactional aspect. That's why your data doesn't appear in the database.